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1996-03-04
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Document 0576
DOCN M9640576
TI Effector functions of antibody and CD8+ cells in resolution of rotavirus
infection and protection against reinfection in mice.
DT 9604
AU McNeal MM; Barone KS; Rae MN; Ward RL; Division of Clinical Virology,
James N. Gamble Institute of; Medical Research, Cincinnati, Ohio 45219,
USA.
SO Virology. 1995 Dec 20;214(2):387-97. Unique Identifier : AIDSLINE
MED/96130177
AB The importance of antibody and CD8+ cells in resolution of murine
rotavirus (EDIM) infection and protection against reinfection was
examined with two strains of B-cell-deficient mice. Following
inoculation of one strain (JHD), rotavirus infection was resolved within
days, but when later reinoculated with EDIM, these mice again shed
rotavirus. Thus, effector mechanisms other than antibody resolved viral
shedding in JHD mice but were insufficient to prevent reinfection. EDIM
shedding in another B-cell-deficient mouse strain (microMT) diminished
but was not fully resolved 93 days after the initial infection, thus
demonstrating that antibody could also be important in resolution of
rotavirus infection. When depleted of CD8+ cells by monoclonal antibody
treatment before EDIM inoculation, JHD mice were unable to resolve
shedding. Even though microMT mice did not fully resolve their initial
infection, depletion of CD8+ cells 49 days after initial inoculation
resulted in a burst of shedding. Thus, CD8+ cells were involved in
resolution of the initial EDIM infection in both strains of
B-cell-deficient mice. Finally, when microMT mice were depleted of CD8+
cells before the initial EDIM infection, gradual resolution of rotavirus
shedding was still observed, suggesting a third effector mechanism was
also involved in resolution of rotavirus infection in mice.
DE Animal Antibodies, Viral/*IMMUNOLOGY CD8-Positive
T-Lymphocytes/*IMMUNOLOGY Disease Models, Animal Feces/VIROLOGY
Female Gene Deletion Immunoglobulins, mu-Chain/GENETICS/IMMUNOLOGY
Immunoglobulins, Heavy-Chain/GENETICS/IMMUNOLOGY Mice Mice, Inbred
BALB C Mice, Inbred C57BL Mice, Mutant Strains
Rotavirus/*IMMUNOLOGY/ISOLATION & PURIF Rotavirus
Infections/*IMMUNOLOGY/PREVENTION & CONTROL/VIROLOGY Support, U.S.
Gov't, P.H.S. Virus Shedding JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).